123385490

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{16879}}^1$

素因数の和:16946

約数の個数: 32

約数和(自身を含む): 240641280

約数和(自身を除く): 117255790

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 170, 215, 430, 731, 1462, 3655, 7310, 16879, 33758, 84395, 168790, 286943, 573886, 725797, 1434715, 1451594, 2869430, 3628985, 7257970, 12338549, 24677098, 61692745, 123385490]

約数ペア:

[(1, 123385490), (2, 61692745), (5, 24677098), (10, 12338549), (17, 7257970), (34, 3628985), (43, 2869430), (85, 1451594), (86, 1434715), (170, 725797), (215, 573886), (430, 286943), (731, 168790), (1462, 84395), (3655, 33758), (7310, 16879)]